EP 2426155 B1 20131016 - Multistage emulsion polymer and improved pigment efficiency
Title (en)
Multistage emulsion polymer and improved pigment efficiency
Title (de)
Mehrstufen-Emulsionspolymer und verbesserte Pigmenteffizienz
Title (fr)
Polymère d'émulsion à phases multiples et efficacité améliorée de pigment
Publication
Application
Priority
US 40277110 P 20100903
Abstract (en)
[origin: EP2426155A1] This invention provides a multistage emulsion polymer including, as copolymerized units: from 0.5% to 5%, by weight P-acid monomer, based on the weight of the emulsion polymer; from 0% to 0.05% by weight multiethylenically unsaturated monomer, based on the weight of the emulsion polymer; and at least one second monoethylenically unsaturated monomer; the emulsion polymer having a calculated Tg of from -20 °C to 50 °C; the emulsion polymer is formed by the "pulsed" addition of 75% to 100% of the P-acid monomer during a stage including from 10% to 50% of the total monomer weight, preferably added during the relatively early stages of the polymerization. A multistage polymer/TiO2 composite particle and an aqueous coating composition including the composite particle are also provided.
IPC 8 full level
C08F 220/18 (2006.01); C08F 2/00 (2006.01); C08F 265/06 (2006.01); C08F 275/00 (2006.01); C08K 3/22 (2006.01); C09C 1/00 (2006.01); C09C 1/36 (2006.01); C09C 3/10 (2006.01); C09D 7/62 (2018.01); C09D 143/02 (2006.01)
CPC (source: EP KR US)
C08F 2/001 (2013.01 - EP US); C08F 2/22 (2013.01 - EP US); C08F 220/10 (2013.01 - KR); C08F 220/1804 (2020.02 - EP US); C08F 265/06 (2013.01 - EP US); C08F 297/02 (2013.01 - US); C08F 297/026 (2013.01 - US); C08F 297/04 (2013.01 - US); C08K 9/04 (2013.01 - KR); C08L 33/04 (2013.01 - KR); C09C 1/0084 (2013.01 - EP US); C09D 7/62 (2017.12 - EP US); C09D 133/04 (2013.01 - KR); C08F 220/06 (2013.01 - EP US); C08F 220/36 (2013.01 - EP US); C08F 230/02 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2426155 A1 20120307; EP 2426155 B1 20131016; EP 2426155 B2 20170628; AU 2011213895 A1 20120322; AU 2011213895 B2 20131121; BR PI1104602 A2 20130115; CA 2749419 A1 20120303; CA 2749419 C 20140930; CN 102417560 A 20120418; CN 102417560 B 20151125; ES 2440797 T3 20140130; ES 2440797 T5 20171031; JP 2012067283 A 20120405; JP 2014194035 A 20141009; JP 5837961 B2 20151224; KR 101310639 B1 20130925; KR 20120024501 A 20120314; MX 2011009238 A 20120329; MX 348804 B 20170628; US 2012058277 A1 20120308; US 9447215 B2 20160920
DOCDB simple family (application)
EP 11177867 A 20110817; AU 2011213895 A 20110825; BR PI1104602 A 20110902; CA 2749419 A 20110817; CN 201110270867 A 20110902; ES 11177867 T 20110817; JP 2011178307 A 20110817; JP 2014110852 A 20140529; KR 20110089139 A 20110902; MX 2011009238 A 20110902; US 201113218926 A 20110826